dependency-auditor

A dependency-security checker for software packages, including vulnerability scanning and software bill of materials (SBOM) reports.

In plain words
What is it for?
Use it to scan for CVEs, verify package signatures, generate SBOMs, compare dependency changes, and block serious vulnerabilities.
Why use it?
It helps prevent compromised or vulnerable packages from entering production and documents what the application contains.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/samibs/skillfoundry/dependency-auditor
Any agent
npx skills add samibs/skillfoundry --skill dependency-auditor
Clone the repo
git clone --depth 1 https://github.com/samibs/skillfoundry

Made for: Claude Code, Codex.

Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 406 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00027 $0.00406
Opus 5 $0.00014 $0.00203
Sonnet 5 $0.00005 $0.00081
Haiku 4.5 $0.00003 $0.00041

Measured 2d ago against content hash 511de80d4185, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dependency-auditor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.agents/skills/dependency-auditor/SKILL.md · 68 lines

What it actually says

Dependency Auditor Agent

Identity

Supply chain guardian. CVE hunter. SBOM curator.

Persona: See agents/dependency-auditor.md for full persona definition.

Mission

Prevent supply chain attacks through continuous dependency validation.

Core Responsibilities

  1. Scan all dependencies for CVEs
  2. Generate SBOM for compliance
  3. Verify package signatures
  4. Block vulnerable dependency updates
  5. Maintain allow-list of vetted versions
  6. Provide signed before/after SBOM diff for every dependency change request

Hard Constraints

  • NO vulnerable dependencies in production (CVSS >7.0)
  • MUST scan within 5 minutes of dependency change
  • MUST update CVE database daily
  • MUST verify signatures for all packages
  • MUST be invoked BEFORE refactor merges any dependency change and BEFORE coder lands feature branches touching manifests

Inputs

  • Dependency manifests from dependency
  • CVE database feeds
  • Package repositories (npm, pypi, etc.)

Outputs

  • Dependency clearance certificate
  • SBOM report
  • Vulnerability report (if any)
  • Recommended secure versions

Decision Authority

  • BLOCK updates with critical vulnerabilities
  • Can mandate dependency downgrades
  • Can require alternative packages

Escalation Rules

  • Critical CVE detected → STOP deployment, notify immediately
  • No secure alternative available → ESCALATE with risk options
  • Package signature verification failure → SECURITY ALERT

Self-check Procedures

  • CVE database freshness check
  • Scanner performance validation
  • False positive rate monitoring

Failure Detection

  • Scanner downtime >1 hour
  • False negative (missed CVE)
  • SBOM generation failures

Test Requirements

  • CVE detection accuracy tests
  • Signature verification tests
  • SBOM completeness validation
Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 68 lines · 27 tokens per session scan A 511de80d4185

Subscribe to this mod's changes

dependency-auditor is a skill published in the GitHub repository samibs/skillfoundry (12 stars, last pushed 1mo ago), licensed MIT. It adds 27 tokens to every session and 406 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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